Benzine filter



March 1, 1932. p|$AN| 1,847,978,

BENZ INE FILTER Filed June 25, 1929 2 Sheets-Sheet l '//v vE/v TOR M.p/smw March 1, 1932. wL-PlsANl 1,847,978

BENZINE FILTER Filed June 25, 1929 2 Sheets-Sheet 2 I fn 71 VEN TOR. M.p/SH/V/ g ,QM

Patented Mar. 1,' 1 932 T STATES ARINorIsAn'I',oF rronfsmo, Ira-LY 5BENZINE FIL ER Application flame. 25; 1929, Serial nos-ac'scodand inItaly. February 20,. 19 2 9.; i l i It, is a fact that benz'ine requiresfilteringbefore use especially in the case of aviation motors; IIt is,also. well known that, filtration bymeans of buckskins, chamois and thelike isnot only very slow, but said skins deteriorate, by becomingriddled with holes, which although very small allow the free passagenot. only. of various impurities, but What is far: more serious orharmful, of thewater or otherforeignliq- .uidswhich'may' be held insuspension'in the .benzine.

The invention iorming the subject of the' resent specification relatesto a device which I .is intended for the filtration of benzine and thelike, wherein the. use of any leathers'is' eliminated. This deviceparticularly meets the-requlrements of rapidity and absolutely obviatesany water passing through the filter 1 with the filtered benzine. Thedevice, fas stated,"filters the liquid with very consider- .ablerapidityas compared with filters using buckskins and the like, with theadvantage that no water or any other foreign. substance originallycontained in the spirit, can

possibly pass through the filter.

The filter according to the present invcn tion may be produced of suchdimensions as may be most appropriate, and variable ac-f cording tothe-number of litres of liquidvto. .be filtered-.-

Essentially, the invention consists of a casing having a suitablefunnel.v Upon the vVertical axis of. the funnel there is abell havingimpermeable walls and, containing .agseries' cf suitable filters, forinstance, circular ones of wire gauze. I Y

The filters 1 ar uitably supp orted within the bell, and the latteris'capable ot raised through the mediurnofan approprihe raising isefiected by unscrewing the bell from a'support carried by the'funnel.The raising of the bell brings about the open; ing of a valve situatedbelow the funnel.

Another small-funnel preferably integral :With the first, islocatedthereunder and serves to collect. the water having been separatedfrom the benzine.

i In this second funnel is provided a stop- .with the valve closed theshape of per plug I for cleaning out i a cock tor 'the' discharge of thedrawings which show apraotical example. of

the invention concerned.

7 In these drawingsj Fig. 1 shows a vertical section ofthe device Fig. 2is ahorizontal section onjlineA iB of Fig. 1;

. Fig. .3 also'shows vertical section.

device, but with the valve-lopen'; 1

, Fig. 4 is a horizontal section on line -Y According to the. exampleshown in-the drawings, thedevice consistsof af-unnel a inat-runcateol'cone forabout twothirds thereof and, for about one-third,@cylindrical; inlthe-interiorof said funnel, and

concentric therewith,is mounted a hell I) within which are verticallyarranged a series of filters 00 which aretubularand concentric one with.the other. j Said filters are supported and closed below by a capprovided with special grooves for containing said filters and'ab0ve;with'a disk elikewiseprovided with filter-supporting grooves.

This disk 6 isjconnected to, a. cap f hich,

in-fitsturn, is connected toa knob. g :which may be integral with thebell I Extending through. the into the belll' is located .at least. onescrew: plug'hywhich when opened permitsithe discharge. of the airIfrointhe bell.

- I The lower cap ol carrying thefilters is rigid.-

lyconnected to a small pipe i. which enters the lowercylindrical partofthe funnel ki Said small piped performs two functions-that of guidingthe'enseinble of the bell and of'the filters, as well as that ofallowingsaiden'semble to become displaced vertically without thereby deviatingfrom the guideway. The

bell b carries at its upper part, preferably in tegral therewith, acircular rim Z provided 7 Fig.' 5 '1s likewise a. horizontal section onwith a thread on its peripheral surface. Said thread is screwed toanother circular rim m, carried by four arms n fixed to the cylindricalportion of the funnel a; This arrangement allows the ensemble of thebell with the filters to be vertical while it also allows such ensembleto rise or descend by virtue of the screwing up or down of the bell bymeans of the knob g.

The conical portion of the funnel is provided with a diaphragm 0 havinga conical valve seat 39. Upon said seat rests, when the bell iscompletely 'lowered,"a valve 9 secured to the bell I); thus when thebell is raised by means of the knob g the'valve 9 is ,raisedestablishing communication between the upper part 1" of the funnel andthe lower part 8.

This lower part 8 is provided with a small hole 6 which, in its turn,puts the chambers into communication withathird chamber a formed by asmall cone a secured, in its turn, to the conical part of the funnel a;This chamber a is provided with a stout stopper or plug '21 for drainingoff the waste or impurities, as well as with a cock 'w for the outflowof the water separated from the benzine. The cylindrical part ofthelfunnel carries within the chamber a a small transverse pipe at openat both ends, which, in its turn, is provided with upwardly extendingbranch pipe'y. This small pipe 11 extends up wardly almost to the top ofthe bell, and it is restricted at e where it adjoins the small flywheelWithin this pipe 3 iscontained a small float 2 provided above with a rod3 which likewise extends'to the upper restricted portion a of the pipey. v v

The water separated from the benzine and passing through 00 on reachinga higher'level raises the float 2. The latter, in its turn, raises thesmall rod 3 which emerges from the top of the knob g iand serves toindicate the quantity of water contained in the chamberu.

Benzine is admitted into the chamber 7" of the funnel a and the handle 9is turned, whereby the valve 9 is raised; the benzine passes into thechamber 8 enters the intervening space 4: (see Fig. 3) thence it passesthrough the various filters and re-emerges through 5whence it passesinto 6 and thenceinto the vessel it is required to fill. Meanwhilethe'w'ater contained in the benzine and rejected from the filters, beingheavier than. the benzine, re-

mains at the bottom of s and, through the small hole t, passes into a,traverses the small pipe 00 and raises the float 2, which by means ofits rod 3 will indicate the presence and the level of the water,contained. in the'chamberu. v

The impurities are removed from the plug 11 whilst the water escapesfrom the cock w. s In use, when thevesselito filled is full, if there isstill any benzine leftin the funnel, the passage thereof from the funneltothe vessel maybe interrupted by the lowering of the bell b, the valve9 being thus closed.

It should be understood that the drawings constitute but a schematicform of example, given solely by way of practical showing of theinvention, said invention being variable as to its forms andarrangements without, however, departing from the scope of the conceptof the invention.

Having now particularly described and ascertained the nature of my saidinvention and in what manner the same is to be performed, I declare thatwhat I claim is 1.'In"a filter for benzine and the like, in

combination, a funnel comprising an upper open topped liquid receivingcompartment, a lower compartment, an outflow pipe extending up into thelower compartment and a partition between the two compartments, amanually controlled vertically opening valve in the partition, asubsidiary compartment disposed below the lower compartment and incommunication therewith for receiving the water and impuritiesof greaterspecific gravity than the benzine passed down into the lower compartmentthrough the valve, and

means for drawing oil the impurities and water from the subsidiarycompartment.

2; In a filter for benzine and the like, 1n combmat1on, a funnelcomprislng an upper open topped liquid receiving compartment, a t,

lower compartment, an out ow pipe extending up into the lowercompartment and a partition between the two compartments, a 'manuallycontrolled vertically opening Valve in the partition, a subsidiarycompartment disposed'b'elow' the lower compartment and in communicationtherewith for receiving the water and impurities of greater specificgravity than the benzine passed down into the lower compartment throughthe valve, means for drawing oii the impurities and water from thesubsidiary compartment, and externally visible means for indicating thelevel of the water in the subsidiary compartment,

said means extending up through the outflow pipe, lower and uppercompartments.

' 3. In afilter for benzine and the like, in

ly of the filter screen and filtered there-F throughin an inwarddirection, and an'outflow pipe communicating with the interior of thescreen.

4. In a filter for benzineand the like, in combination, a funnel, atransverse partition dividing the funnel into an upper and'lowercompartment, a manually controlled Valve in the partition, a bellassociated with the valve and its lower open end disposed in the sealedat top and bottom disposed in the bell,

the'benzine passing from the lower compartment into the bell exteriorlyof the filter screen and filtered therethrough in an inward direction,an outfiow pipe communicating with the interior of the screen, andmanually controlled means for raising and lowering the bell to open andclose the valve in the partition.

5. In a filter for benzine and the like, in combination, a funnel, atransverse partition dividing the funnel into an upper and lowercompartment, a manually controlled valve in the partition, a bellassociated with thev'alve and its lower open end disposed in the lowercompartment, at least one filter screen sealed at top and bottomdisposed in the bell, the benzine passing from the lower compartmentinto the bell exteriorly of the filter screen and filtered therethroughin an inward direction, an outflow pipe communicating with the interiorof the screen, and manually controlled means for raising and loweringthe bell to open and close the valve in the partition, said manuallycontrolled means including an Hi 7 ternally threaded ring supported inthe funnel and an externally threaded. rim on bell threaded thereinto.

6. In a filter for benzine and the like, in combination, a funnehatransverse partition dividing the funnel into an upper and lower thebenzine passing through the filter in the bell,

said outflow pipe passing through the subsidiary compartment, atransverse pipe extending through that port-ion of the outflow pipe 7 ir disposed in the subsidiary compartment, said transverse pipe open tothe subsidiary com partment, an upwardly extending branch pipecommunicating with the transverse pipe and extending up through theoutfiowpipe and bell, and a float insaid branch pipe-1ncluding anindicating rod extending up through the branch pipe and adapted to protrude fromits upper end upon the water in the subsidiary compartmentrising a predetermined extent.

8. A combined separator and filter comprising a funneha water collectingchamber located around the neck "of the funnel and having communicationwith the interior of the funnel, a partition in the funnel dividing thesame into an upper and lower chamber, said partition having a Valveseat,'and a filtering device carrying a valve to close said seat,adjustable in said funnel to move said valve toward and away'from saidseat.

MARINO PISANI.

compartment, a manually controlledvalve in the partition, a bell uponwhich the valve is mounted disposed with its lower open end in the lowercompartment, at least one filter screen sealed at top disposed in thebell, the benzine passing from the lower compartment into the belle'x'teriorly of the filter screen and filtered therethrough in an inwarddirection, an outflow pipe communicating with the interior of thescreen, and a subsidiary compartment located belowthe lower compartmentand in communication therewith for receiving the water and impurities ofgreat- I er specific gravity than the benzine prior to Ehe benzinepassing through the filter in the ell.

7. In a filter for benzine and the like, in

combination, a funnel, a transverse partition dividing the funnel intoan upper and lower compartment, a manually controlled valve in thepartition, a bell upon which the valve is mounted'disposed with itslower open end in the lower compartment, atleast one filter partmentlocated below the lower compartment and in communication therewith forreceivmg the water and impurities of greater specific gravity than thebenzine priorto' the

